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Finding the Fourth Proportional to 18,147.24, 27,223.29 and 17,821.62

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Solution

The fourth proportional to 18,147.24, 27,223.29 and 17,821.62 is: 26,734.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147.24 : 27,223.29 = 17,821.62 : x
  2. Step 2: Convert to fraction form
    18,147.24/27,223.29 = 17,821.62/x
  3. Step 3: Cross multiply
    18,147.24x = 27,223.29 × 17,821.62
  4. Step 4: Simplify right side
    18,147.24x = 485,163,129.53
  5. Step 5: Solve for x
    x = 485,163,129.53/18,147.24
  6. Step 6: Final answer
    x = 26,734.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.